Pawn promoted to a queen when reaches to top/bottom

OOP_2B1_Project/highlightKingWhenCheck

@@ -0,0 +1,9 @@
+WR,WN,WB,WQ,WK,WB,WN,WR
+WP,WP,WP,,WP,WP,WP,
+,,,,,,,WP
+,,,WP,,,,
+,,,,BP,,,
+,,,,,,,
+BP,BP,BP,BP,,BP,BP,BP
+BR,BN,BB,BK,BQ,BB,BN,BR
+B

OOP_2B1_Project/src/backend/Board.java

@@ -349,6 +349,23 @@ public class Board implements Cloneable  {
 
 		pieces.remove(pieceToMove);
 
+		// Check if the moved piece is a pawn reaching the opposite end of the board
+	    if (pieceToMove.getType() == PieceType.Pawn) {
+	        if ((pieceToMove.isWhite() && move.getToRow() == 7) || (!pieceToMove.isWhite() && move.getToRow() == 0)) {
+	            // Promote the pawn to a queen
+	            Piece promotedPiece = makeNewPiece(PieceType.Queen, pieceToMove.isWhite(), move.getToCol(), move.getToRow());
+	            pieces.add(promotedPiece);
+
+	            // Update turn info
+	            turnIsWhite = !turnIsWhite;
+	            turnNumber++;
+
+	            // Play move sound if enabled
+	            playMoveSound();
+	            return;
+	        }
+	    }
+		
 		// Add moved piece at the new position
 		Piece movedPiece = makeNewPiece(pieceToMove.getType(), pieceToMove.isWhite(), move.getToCol(), move.getToRow());
 		pieces.add(movedPiece);